worst performing large cap stocks last 2 weeks

Ast Spacemobile (ASTS) has had the lowest return between September 29, 2026 and October 13, 2026 by a large-cap US stock, returning -27.7%.

ASSETDATE% RETURN
Ast Spacemobile (ASTS)
9/29/2026 - 10/13/2026
-27.7%
Quantinuum Inc Class A Common Stock (QNT)
9/29/2026 - 10/13/2026
-26.52%
Cerebras Systems Inc Class A Common Stock (CBRS)
9/29/2026 - 10/13/2026
-25.77%
IONQ (IONQ)
9/29/2026 - 10/13/2026
-24.17%
Seagate Technology (STX)
9/29/2026 - 10/13/2026
-20.81%
Tempus AI, Inc Class A Common Stock (TEM)
9/29/2026 - 10/13/2026
-20.2%
10X Genomics (TXG)
9/29/2026 - 10/13/2026
-19.55%
Resolution Minerals Ltd American Depositary Shares (RML)
9/29/2026 - 10/13/2026
-18.52%
IREN (IREN)
9/29/2026 - 10/13/2026
-18.19%
Summit Therapeutics (SMMT)
9/29/2026 - 10/13/2026
-17.93%
Western Digital (WDC)
9/29/2026 - 10/13/2026
-17.8%
Galaxy Digital (GLXY)
9/29/2026 - 10/13/2026
-17.62%
Insmed (INSM)
9/29/2026 - 10/13/2026
-17.32%
argenx NV ADR (ARGX)
9/29/2026 - 10/13/2026
-16.83%
Twist Bioscience (TWST)
9/29/2026 - 10/13/2026
-15.88%
SK Hynix Inc American Depositary Shares (SKHY)
9/29/2026 - 10/13/2026
-15.15%
Sandisk (SNDK)
9/29/2026 - 10/13/2026
-15.01%
IES (IESC)
9/29/2026 - 10/13/2026
-14.7%
Sitime (SITM)
9/29/2026 - 10/13/2026
-13.84%
Skyworks Solutions (SWKS)
9/29/2026 - 10/13/2026
-13.45%
Amkor Technology (AMKR)
9/29/2026 - 10/13/2026
-13.04%
Rocket Lab USA (RKLB)
9/29/2026 - 10/13/2026
-12.59%
Arm Holdings plc American Depositary Shares (ARM)
9/29/2026 - 10/13/2026
-12.24%
Alnylam Pharmaceuticals (ALNY)
9/29/2026 - 10/13/2026
-12.18%
Incyte (INCY)
9/29/2026 - 10/13/2026
-12.17%
Large-cap stocks are treated as having a market cap of $10B+.